题目内容
设集合A={a，b，c，d}，A上的关系R={,,}（1）用矩阵运算和作图方法求出R的自反闭包、对称闭包和传递闭包；（2）用Warshall算法求出R的传递闭包。
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设集合为{3,5,15},{1,2,3,6,12},{3,9,27,54},关系为整除，请问该关系在不同集合上是否均为偏序关系？如果是，请画出这些集合的哈斯图，并指出哪些是全序关系。
教材P74页Fill in the following blanks with words given below. Change the forms where necessary.vigorousexternalmanufacturecomparableoffensiveentrepreneurinternalobligatespecificaccommodateincorporatefulfillmentcontractplateaudistribute1) After a period of rapid inflation, prices have now reached a __________.2) He would not have succeeded in such a risky business if he had not been such a clever __________.3) This web page allows you to set up your order __________ options.4) The medical establishment is __________ to take action in the best interest of the public.5) This sort of attitude is very __________ to black people.6) Our staff members will be delighted to __________ all your needs.7) He never ceased to chase after his dream in his __________ youth.8) These conditions must be expressly __________ into the contract of employment.9) Copies of the book were __________ free to each school in the district.10) Savings were made by increasing the electricity supply only until it met __________ development needs.11 ) These __________ disputes have weakened the party's power.12) Luckily, Susan got better quality at a __________ price.
罗尓中值定理无法判断导函数的零点是否存在.
如果罗尓中值定理的三个条件没有满足，则罗尔中值定理一定不成立.
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